Prince Edward Island has a long and cold winter with heavy snowfall, a warm and humid summer, and high humidity throughout the year. Agriculture, fishery and tourism are the core industries. The ERV system's ability to both control humidity and recover energy makes it highly suitable for various scenarios in this province, including residential areas, tourist accommodations, and agricultural processing sites. The specific requirements are as follows:

1.** Various residential areas ** : New apartments in Charlottown, the provincial capital, such as the West Royal Suite, need to ensure the indoor fresh air volume in accordance with the standards during construction. ERV can meet such demands and also reduce the problems of indoor dryness in winter and dampness in summer by regulating temperature and humidity. In cities like Sumerside, most of the old residences have poor sealing performance and lack efficient ventilation equipment. In winter, they are prone to air pollution due to heating, and in summer, the dampness can easily breed mold. Installing ERVs can not only introduce fresh air but also recover heating or cooling energy, reducing energy consumption and meeting the local residents' demands for living comfort and energy conservation.

2. ** All-round Tourism Accommodation Facilities ** : There are a large number of homestays, resorts and hotels around attractions such as Prince Edward Island National Park and Anne's Green Cottage in this province. Summer is the peak tourist season. These places are crowded with people and the outdoor humidity is high. ERV can filter impurities in the outdoor air, preventing damp air from entering the room and causing mold on the walls and damp bedding, thereby enhancing the living experience of tourists. In winter, the number of tourists decreases, and the demand for heating in places is high. The function of ERV to recover the heat from exhaust air can reduce heating costs. At the same time, continuous ventilation can prevent the air in long-idle guest rooms from becoming polluted.

3. ** Agricultural and Fishery Processing Sites ** : As a pillar industry of the province, there are numerous potato storage warehouses and processing plants in agriculture, while in the fishery sector, there are processing workshops for seafood such as lobsters and oysters. Potatoes are prone to spoilage when stored in a humid environment. Seafood processing generates a large amount of water vapor and unpleasant odors, and it is also necessary to maintain a relatively stable temperature. ERV can precisely control the temperature and humidity in these places, prevent food from deteriorating, and at the same time recover the waste heat generated during processing, reducing the energy consumption for cooling or heating. Its air filtration function can also reduce the accumulation of processing dust and odors indoors.

4. ** All schools and office buildings in the province ** : Public schools in Charlottetown, local office buildings in Summerside, etc. are all applicable to ERV. In schools, students gather in large numbers. In winter, doors and Windows are tightly closed, which can easily lead to poor air circulation. ERV can continuously supply clean air, reducing the spread of diseases such as influenza, and its low operating noise does not affect teaching. Office workers are often in confined Spaces for long periods of time. ERV can improve indoor air quality, enhance employees' work efficiency, and at the same time meet the cooling and heating demands in both winter and summer, reducing the energy consumption of air conditioning and heating systems in the office.

5. ** Small medical and elderly Care Institutions ** : Community clinics and rural nursing homes across the province have strict requirements for indoor air quality and temperature and humidity. In winter, nursing homes need to be heated for a long time. In a closed environment, the air is prone to dryness, which can easily induce respiratory diseases in the elderly. There may be bacteria in the clinic. It is necessary to keep the air clean to reduce the risk of cross-infection. ERV can recover heat to maintain a suitable indoor temperature, while regulating humidity and filtering air, creating a healthier environment for the elderly and patients, and also reducing the long-term operational energy consumption of such institutions.